Sewing-machine.



No. 862.830. PATENTED AUG. 6, 1907 J G LEWIS SEWING MACHINE. APPLIIUATION FILED AUG.2. 1902.

7 SHEETSSHEET l PATENTED AUG. 6'. 1907 J. G. LEWIS. SEWING MACHINE,

APPLICATION FILED AUG. 2, 1902.

'7 SHEETSSHEET 2 John G; Lewis ra z vy'dg N0. 862.830. PATENTED AUG. 6, 1907.

J. G. LEWIS.

SEWING MACHINE.

APPLICATION FILED AUG. 2, 1902.

7 SHEETS-SHEET 4.

" 64c 60 2Fig-6- John G. Lewis 1%. 862,830. PATEYNTED AUG. 6, 1907. J. G. LEWIS. SEWING MACHINE.

APPLIOATION FILED AUG. 2, 1902.

7 SHEETS-SHEET s.

v .92 & .E 99: .2 LL.

WWW ammo/Wm mwfl I John G. Lewis f 80% 1%? J G LEWIS SEWING MACHINE.

r I APPLICATION FILED AUG.2, 1902.

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02. C3 54mg PATENTED AUG. 6,1907.

J G LEWIS SEWING MACHINE. APPLICATION FILED AUG.'2. 1902.

7 SHEETS-SHEET 7.

Fig.25. 14.1 14.2 156 Johp G'r. Lew-.s

' I is. 862,330.

M QFFIGE JOHN G..LEw1s, OF" ST, LOUIS, russousr, ASSIGNOR TO LEWIS BLIND s'rrron MACHINE i g r COMPANY, OF sT. LQUIS, MIssoUEL-A CORPORATION OF MISSOURI;

"SEWING-MACHINE,

Patented sa e-1907.}

I Tolalluihom it may concern:

Be it known that 1, Join; G. LEWIs, a citizen of the United States, residing at the city of St. Louis, in the State ct -Missouri, have invented a certain new and iseiul Sewing-Machine, of which thefollowing is such i full, clear; and exact description as .willcnable any I? one skilled in the art towhich it .appertains to make particular and usefthe .samey r eierence being had to the accompanyiri air sings, forming part oi this specification.

' lily in I rd ."relates to sewing machines, and more .y to blind stitch sewing machines, that is, machines making stitches which enter and leave the 7 same sideof thegoods, and which are locked or enchained upon the said side. I V I v The object of my invention is to simplify the construction oiblind stitch sewing machines, and to procealed or nearly so on=theside1of the goods inwhich, the stitches are made."

- vide mechanism'whereby stitches can be made which are invisible on the opposite side of the goods to that ion which the stitches are made, but which are locked orlenchained uponithe side or face of the goods upon which-the needle enterszand which can be also con- Ini the accompanying drawings, whichf-v illustrate oneiorm of sewing machine made in'accordance with my invention Figure 1 is an end view, the arm being shown in section and the end plate being broken away;

Fig. 2 is a slightly enlarged top plan view ofthe end ofthe arm and the back guide carried thereby; Fig. 3 is a longitudinal vertical section; Fig. 4 is aivertical cross section-on-line 4' 4 of Fig. 5; Fig. 5 is a horizontal section'of one'end oi the .fmachine; Fig. 6 isa;

section on the line 6-6 of Fig. 2; Figs. 7 and 8 are isometric projections of the two parts of the backguide Fig. 9 is an isometric projection showing the iced dog and connectionsfFigsh and llare an'isometric projection and a side elevation respectively of the prcsserfoot; Fig 12 isja top plan view, on a reduce'dscale,

v of theicasing of the machine; Figs. 13 and 14 are a section the drag-foot; Fig. 20 is arse ctional view showea r E tion and-an end viewrespectively of the-casing; Fig. 15 is aside elevation of the rotary hook; Fig. 16 is a rear view of the hook; Fig 17 is a front view of the -l1ool -l?ig.,18is a sectional viewshowing the hook and connectionsgtogether with the needle and the V needle bar; Fig. 19 is an enlarged isometric projecthe presser-ioot bar; Fig. ,21iis. a'topplan view of I theback guide showing the goods position; Fig. 22

view oi the backguidewithhthe' goodsi'around 3'is a view similar to .Fig 2i2'but'without the g ds Figf24 is: a section. oni the 1ine124Y-34 of 6;;Fig. 253 s sectionfon the 1'mez5 -2so sig.

' plan view showing the Wm loosening the set screw the arm 48 can be'raised or the endof the link 44 with the guide 40 and thus: changing the length of the stitch as will be herein? after descrih edi back guide.

2 1 and Fig. 27 is a top e and drag foot. r to similar'parts in the the end plate being in 3' Like marks of reference several views of the drawings.

30 is the main casing or housing oi themachim? said casing or housing 30 has secured to it an arm 3i which extendspan llcl with the casing 30, as best shown in Fig. 12. Journaled in the main casing 30 Pivoted to the housing 30 is a segmental guide 40 7.0

which is provided with an arm 41 (Figs. 4 and 5) earrying a roller 42. The roller .42 engages with the track of, the cam 33 on the main shaft 32. Engaging with the guide 40 is one end of a link 44, the opposite end of which is pivoted to a rocker arm 45 carried on a rockshaft 46, passing through ,the arm 31 of the machine. The link 44 is supported by means ofa link 47 pivoted to one end of an arm 48. This arm 48 is secured in a boss 49 by means of a set screw 50. By

lowered, thus changing the point of engagementlof Carried by the arm 31 is a lug 52 in v j is' g5 naled a rock shaft 53 extending througlt arm oi the machine parallel with the shaft 46. r Rigidly carried by the shaft 53 is an arm 54 provided withla roller 55 which engages with the? track of the cam 34. g Pivoted to theend of the arm 54 is one end-oi a link 56, the opposite end of which is pivotcdtoashort rocker arm 57 rigidly secured to a rock shaft 58, extending longitudinally of the machine parallel with the main shaft 32'and the shafts 46 and 53 hereinbefore described. 60 and .61 (Figs. 1, 2, 6, 7 dz 8) are the two parts of the back guidewhich are slidinglymounted on the end of the arm 31 by means of a guide plate 62,-hcld in positionby screws 63. The ends'oi the parts 60 and 61 of the back guidearerounded and .form twp working faces 64and'65,-resp'ectively which-are arranged at a slight "Each oitheparts 60 and '61 is provided with a down-;.

"wardly' projecting po1'tion66 in which is termed ar slot formed on the sleeve 08.

the downward projection 66 rests against a collar 70 Bearing against the outer, face of the projection 66 is one end of a U-shaped spring 71, the other end of which rests againsta milled head formed on the sleeve .68.

- Passing through the sleeve 68 is a rod 73 having formed in its outer end a slot 74 for the reception of a screw driver.

Formed on the inner end of the rod 73 is a screwthreaded head 75 which engages with the threaded opening 69 and is adapted to lock the sleeve 68 Each of the parts (50 and 61 is also provided with a downwardly projecting portion 77 against the edges of which bears the rounded end of a rocker arm 7 8v (Fig.

1) rigidly carried on the shaft 46.

To the projection 77, carried on the part 61, is pivoted a feed dog 79 (Figs: 1, 2 and 9). Bearing against the upper side of the feed dog 79 is a block 80 pivotally mounted on an arm 81 rigidly secured to the rock shaft 53. Cooperating with the feed dog 79 is a walking foot 83 (Figs. 1, 20 and 26) which is pivoted to one end of a bell-crank lever 84 by means of a screw 85. The bellcrank lever 84 is pivoted at 86 (Fig. 20) to a collar 87 secured to the presser-foot bar 88. "The opposite end of the bell-crank lever 84 is bifurcated and engages with a block 89 pivoted to an arm 90 rigidly secured to the rock shaft 58. The collar 87 is-p'rovided with a square projection '92 whichextendathrough a slot 93 with a collar 114 on the end of the resser-foot bar 88.

in the end plate 94 of the machine. This projection 92 is adapted to be acted upon by the cam end 95 of a lever 96 which is pivoted to the end plate 94 by means of a screw-97 (Fig. 26). The walking foot 83 is connected to the p esser-foot bar 88 by means of a coil spring 98.

Secured in the upper end of the presser-foot bar 88 is the presser-foot 99, shown in detail in Figs. 10 and 11. The resser-foot 99 is adapted to clamp the goods against the work plate 91 carried onthe under faceof the arm 31 and is provided with a slot 100 through which. projects the walking foot 83. The resser-foot 99 is provided with a downward projection 101 on which is pivotally mounted an auxiliary presser-foot 102. The auxiliary presser-foot 102 is held against the work by means of a coil spring 103 secured, at one end, to a pin 104 in said auxiliaryresser-foot and, at the other end, to a pin 105on the downward projection 101. The presserfoot bar 88 is surrounded by'a coil spring 106, one-end of which rests against the collar 87 and the other end of which rests against a threaded sleeve 107 (Fig. 1) passing through a downwardly extending yoke 108 carried by the main housing 30. The sleeve 107' is provided with a milled head 109 by means of which it can be turned to adjust the tension of the spring 106. Pivoted to the yoke 108 is a'link 110 which engages The link 110 has attached to it a chain 111 by means of which the presser-foot may be drawn out of engagement with the work. The link 110 also has pivoted to it a rod 112, the purpose of which will be hereinafter described.

Surrounding the eccentric 35 is an eccentric strap 11.5 (Fig. 3) carrying a connecting rod 116. This connecting rod 116 is attached by means of a ball and sock et joint 117 'to a lever 118. The lever 118 is pivoted at 119 to a downwardly projecting lug 1%) carried by the main casing 30. The opposite end ofthe lever 118'is connected by means of a link 121 with a collar 122 rigidly secured to the needle bar 123. The needle bar 123 is slidingly mounted in a yoke 124 pivoted at points 125 and 126 (Fig. 1) and provided with a rearwardly and upwardly extending L-shaped arm 127. The arm 127 is connected by means of a'rod 128 to 'a pivoted, segment 129 (Fig. 3). The segment 129 is provided switch cam 36 heretofore described.

Pivoted to the interior of the casing 30 by means of a screw 131 is a lever 132, the outer end 133 of which acts as a take up. The inner end is provided with a roller 134 which engages with the track of the cam 37 upon the main shaft 32, 135 (Fig. 26) is a tension device of the usual construction carried by the end plate 94. Surrounding the end of the shaft 38 of the meter box is a gear casing 137 containing two spiral gears 138 and 139 respectively (Figs. 1 & 18). The gear 138 is rigidly secured to the shaft 38 and meshes with the gear 139. The gear 139 meshes with a small spiral gear 140 secured .to the spindle '141 of the rotary hook 142. The hook 142 is provided with a casing 143 preferably made in-' tegral with the gear casing 137. I

Pivot'ed to the gear casing 137 is a lever 144, the rear end of which is connected to the rod 112 hereinbefore described. I The lever 144 is provided with a, forwardly projecting portion 145 from which extends a catch 146 adapted to engage with stops 147 and 148 (Fig. 26) on the rounded forward end of the meter box 39. I

Pivoted to the gear casing 137 'is a drag-foot 150 shown in detail ill Fig. 19. This drag-foot 150 is adapted to hold the work against the upper side of the back guide. It is held in position by means of a coil spring 151 (Fig. 1), one end of which is attached to the rear end of said drag-foot 150, and the other end of which is attached to an arm 152 adjiistably attached to the gear casing 137 by meansof a screw 153. "By loosening this screw 153 the arm 152 can be adjusted to' vary the tension of the spring 151. The drag-foot 150' is provided with a wing 154 (Fig. 19) which is adapted to act as an edge guide for the superimposed portion of the seam or hem. The drag foot and consequently the edge-guideis inclined to'the path of the goods at the point of feed as is best illustrated in Fig. 27.. This inclination is such that the line indicating the travel of the goods at the point of the feed and the line indicating the-inclination of the dragioot and edge-guide make equal angles with a' line at 90? to a line touching the extreme points ofthe backguide. This construction is clearly shown in Fig. 27 and insures the feed of the goods at the proper angle to theback-g'uide in order tomccomplish the functions hereinafter more fully set forth in connection with the operation ofthe'machine.

The rotary hook 142, as will be seenfrom ings, is inclined to the path of reciprocation of i the needle. i The rearface of the hook 142 is conicalso as to present 'a face parallel tothe needle except ascertain points of its circumference as hereinafter described. A thickened-portion 156 is provided so as to form an offset the draw- 157 to throw the loop onto the cast-eff surfacej 155. In

. jmg e of air hook, 1'. a, a hook which on its outside with abridge 160 for supporting the point of the needle while the loop is being taken by the beak 161.

I when brought into alinernent by the needle guide, that necessary for the needle to pass the beakof the hook on the function'of more readydischarge is accomplished needle. The hook 142 also provided witha path 159 secure to thecasing30 a,.rigid needle guide 166 which 'quentlyftlie'thrust of the needle willtend to draw the goods backwards in any of the paths of reciprocation it tion 169 being turned over or superimposed upon the main layer asshown inFigs. 21 and -22. ,The' main against the work plate91 by the presser-foot 99, and

' the 'goods" dh es-n ot told the periphery does not travel in a race way, it is customary to take theloop from the needle on the rear side or face of the hook and discharge it'over the outer or front face of the hook and around the bobbin case. Home itis the rear face and there form the loop; By arranging: this hook at an angle to the reciprocationof the-needle,

for the needle thread toprevent chafing of the thread between the needle and the hook, and is also provided Secured in the needle bar 123 is a needle 165. The .point ofthe needle 165 is substantially in with the side of the needle toward the back guide and the needle is slightly inclined away from the guide as shown in Fig. 18. In order to bring the needle into alinernent I brings theneedle into alinernent as it passes the .guide. 1 Asthe needle when free is inclined z'it isunder tension.

is held against the guide byv its own elasticity and it is; thus'prevente'd from vibrating while-passing the back guide.

168represents the main body of the goods and 169 the I turned over or superimposed portion of the same. (Figs. 21d '22,). j' f It will be noted that-the thrust of the needle is ir. the direction opposite to'th e feed of the goods and consegoodsjinl opposition to the feed mechanism and thus insure t i goods being held tightly around the guide at all I If the thrust oithe needle were in the opposite, iouthetendeucy would beto loosen the'goods aroiind the guideand consequently allow the stitched to show through on the back or right side of the goods. In order, however, that the needle may not feed the is necessary that both the main layer and the auxiliary layer of goods be firmly held in position during the thrust of the needle and to this end the feeding mechanism is provided with the rnain and auxiliary presserfeet as has been hereinbefore described.

I The operation of my .machine- 'is as' follows; The goods 168 arepassed around the back guide; the porportion of the ghods beneath the back guide is clamped the superimposed portion is clamped by the auxiliary Presser-foot 102, while the main portion of the goods. ahqvethe back guide is held by the dmg' foot 150. A Bthe auitiliary resser-foot is yieldingly mounted the extra thickness of the superimposed portion of main presser-foot out of tween the hook and needle. .ports the=point of the needle contact with the layer of goods. Thus both the mainand superirnposed'layers. of goods are firmly heldso thast the goods are not forced out of place by the needle. hen-it: is enteringithe goods. Vertical inovement fls; 'mparted to the needle bar from the eccentgi'ciiihi -by" means of the strap 115 connecting rod 116, lever, 118 and link 121. Lateral movement is communicated to the needle bar by means of the switch cam,36,-'co nnecting rod 128rand arm 127 in the .usual manner." As the needle 165 moves upward-it strikes the inclined face of the needle guide 166 which brings the needle into alinement as it passes the back guide. It will thus be seen 'that the" needle while passing the'guide is in alinement' and at the same time is under tension .so as to prevent all vibration of'the needle thus insuring its passage at the proper and leaving the main layer 168 of goods at the same side, but does not enter'the superimposed layer 169.

the cam 36 so as to pass along the line B entering the edge or underside of the superimposed layer and emerging from the surface thus piercing the said "superirnposed layer transversely. -By sufliciently tight-' eningthe tension the edge of the superimposed portion 169 is drawn under so that the stitch is concealed,

goods from which the or almost soon the side of the stitch is done;

In, addition to the above advantages the diagonal stitch obtained by the angular presentation of the distance from theback guide. The needle 165 at one thrustgp'asses' along the line A' (Fig. 22) entering .At thenext "thrust the needle is moved laterally'by goods secures greater binding effect and covering 021- pacity than can be obtained by a straight stitch. The side pointed needle, whichl prefer tense, necessarily has all theb'evel onone side, which fsideis turned away from the back-guideand hook. In thrustigg the needle through thick goods the bevel tends'to deflect the needle toward the hook, hence the hook. is provided with the recessed deflecting surface 158 As the deflecting. surface is downward or toward the needle '5. e. lies inthe direction of the length of the needle as the needle enters the periphery, the needle will not strike the periphery of the hook and become broken, but will be guided into a vertical position by means of the said deflecting surface, and thus be guidedback of the bridge 160. As the -hook rotates the thread in the needle will be cleared by the path 159 thus preventing its being chafed be- The bridge 160 supwhile the loop is being taken by the beak 161 of the hook. The inclined position of the hook together with the offset 157 causes the loop to be thrown onto the beveled cast-off surface 155 which causes the loop-to fall over the face of thehook andaway from in place of around the hook. The motidn of the rock shaft '58 is communicated to thelever 84.- The first movement of this lever: is on the pivot 86 and causes the walking s arse to clamp .thegoods between itself and the feed dog 79 which being actuated by the-same source'of motion comes downward to mee the walking foot 83. As soon as 1 this has taken place the movement of'the lever will be shifted from the pivot, 86 to the pivot 8 5 and'the presser foot 99 will be caused to recede from the work plate 91 sov that'the goods will be held only: between the walking foot and the feed dog. The movement of the rock shaft 46 through the rocker arm 78 will now cause the twofparts 60 and 61 of the back guide has been. accomplished the rock shafts '53 and 58,

which are both controlled by thecam 34, .will move allowing the feed dog 79 to return within the arm 31 and also withdrawing the walking foot 83 and allowing the presser foot 99 to clamp the goods against the work plate 91. After such clamping has taken place the rocker arm 78 recedes allowing the guides 60 and 61 to be forced forward bythe springs 71, thus feed ing the goods for the next stitch. This movement of the goods also has a straightening effect upon the goods, preventing it from remaining in a bent or folded condition.

The two parts of the back guide can be independently adjusted so that the two rows of stitching may be made at the proper distance from-the face of the said back guide. In order to adjust the faces of the back guide one of the rods 73 is turned by means oi the slot 74 so as to move the threaded head 75 away from the end of the sleeve 68. The sleeve 68 can now be adjusted to the proper distance by'means of the milled head 72;

and the sleeve can be locked in position by means of the rod 73. The collar on the sleeve (38 furnishes a stop for positively limiting the forward movement of the back guide. Besides securing the proper distance of the two rows of stitches from the back guide, the independent adj ustability of the two parts of the guide is also of advantage in securing even feeding of the main and superimposed layers of goods. If both parts of the guide have the same amount of movement the superimposed layer of goods will be fed slightly faster than the main layer on account of the extra peripheral travel of said superimposed layer, when passing around the back guide. By so adjusting the part of the guide acting upon the main layer that it will have slightly more movement than the other part extra feed is imparted to the layer to overcome the above difficulty and thus prevent drawing and unequal feeding of the goods. This difiiculty is also partially overcome-by the straightening effect caused by the forward movement of the guide as previously explained. The main object in having the faces of the two parts of the guide arranged at an angle toform a rentrant working face is to facilitate the sewing of curved or irregular shapes, such as the curved bottom of trousers. Owing to this rentrant face the goods can be moved laterally in either direction for some distance thus changing thc line of feed and causing the stitch to follow the curved shape of the goods. This l'eature is also of some advantage in sewing in a straight line as it helps to guide the goods.

In order to move the rotary hook away from the back guide to allow the insertion or removal of the goods, the chain 111 is operated by means of a foot ireadle or any other suitable way. 'lh is draws the prcsscr foot 99 away from the work plate {)1 by means of the link 110 and at the same time through the rod 112 moves the lever 144. The first movement of the lever is on its pivot and causes the detent 146 to be moved out of engagement with the stop 147. The rest of the movement causes the hook and gear case to swing around the shaft 38, thus moving the hook case away from the back guide. When it is desired to move the hook case without releasing the presser foot the forwardly extending lever- 145 is raised by hand; swinging the hook case away in the same manner as above described, but not affecting the presser foot 99.

V Many of the features shown and described in the present application are claimed in my prior patents No. 731,695 of June 23, 1903, and No. 746,853 of January 27 1900, and hence the said features are not claimed in the present application.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is;

1. In a sewing machine for blind stitching, the combination with stitch-forming mechanism, of a back guide having a reentrant working face, and means for feeding the goods across said face.

:2. In a sewing machine for blind stitching, the combination with stitch forming mechanism, of a yieidingly mounted back guide having a reiintrant working face and means for feeding the goods across said face.

3. A sewing machine for blind sitching. the comhinntic. with stitch-forming mechanism. of a back guide provided with two working faces arranged at a reintrant angle to each other. said faces being at different places in the length of the guide. and means for feeding the goods across said guide.

4. in a sewing machine for blind stitching. the combination with stitch-forming mechanism, of a yieldingly mounted back guide provided witlrtwo working faces urronged at an angle to each other, said faces being at different places in the length of the guide, and means for iceding the goods across said guide.

In :1 sewing machine for blind stitching, the combinzr tion with stitch-forming mechanism, of a be :k guide provided with two working faces arranged at different places in the length of the guide and mounted to yield independently, and means for feeding'the goods across said guide.

(7. In a sewing machine for blind stitching. tho combination with stitch-forming mechanism. of a \"icldiugly mounted back guide, means for m-eciprocating' said guide. and adjustable means for limiting the forward movcmcnr of said guide.

7. In a sewing machine for blind stitching, the combinaiion with stii'clrforming mechanism. of a yicldiugly mounted back guide provided with two working faces ar ranged at an angle to each other. said faces bcing at dilicrent places in the length of the guide, adjustable means for limiting the forwardmovement of said guide. and means for feeding the goods across the guide.

h. in a sewing machine for blind stitching, the combina tion with stitch-forming mechanism. or a back guide provided with two working faces. and means for independently adjusting snid working faces;

2). In u sewing machine for blind stitching. the combina lion with stitclnformiug mechanism. of a back guidc provided with two working faces arranged :ll dilicrcnl' places in the length of the guide to yield independently. adjustable means for limiting. the forward movcmcnt of said guide. and means for feeding the goods across said guide 10. ln a sewing machine for blind stitching, tho combination with stitch-forming mechanism. of a hack guide provided with two working faccs, said working focus being arrangcrtto yield imlepcndenrly. and independent means for adjustnbly limiting the forward mow-incur of said working faces.

11. in :1 scwingnmch nc for blind stitching. Th0 combi-- nation with Silit'lhfiil'llllllg mechanism. of a buck guide provided with two working faces arranged at an angle to each other, said working faces being mounted to yield hr dependently; and' independnt means for adjustably' l imit ing the torwardmovement ot said working faces.

- 12.- In a. sewing machine-for blind stitching, a'needl'e, a

' back guide around which the goods are ted-said back "guide;

" said needle is out of engagement with the goods.

13. Inc. sewing machine for blind stitching,- a'neediwa back guide having two working races around which the goods are fed, said back guldebeing. statlonary'while the needle is in the goods, and' means for reciprocating the hack'guidedn a direction transverse to the path of reciprocation or the needle while saldneedle is out oi. engagement wlth the gqods.-' i t 14; In a sewing machine for blind stitching, the combination with stitch forming mechanism for forming two rows of stitches-lathe goods, of means for independently adjusting the depth of said rows 01 stitches in thegoods;

15.-.In a sewing machine tor blind stitching, the coiubi nation with stitch-forming mechanism lncludinga needle having two paths or reciprocation, for formingtwo rows of stitches in the goods, ofmeaus' for independently adjusting the depth of said rows of stitches in the goods.

16pm a sewing machine for blind stitching, the combination witha back guide, of means for forming two rows of stitches adjacent to the face of said'back guide, and independent means for adjusting the distance between each of said rows 01 stitches and the back guide.

17. In a sewing machine for blind stitching, the combination with a reciprocating .and laterally vibrating needle, of a back guide having, a rentrant working face, ,and

means for feeding the goods across said guide:

18. In a sewing machine for blind stitching, the combination with a reciprocating and laterally vibrating needle, of a back guide provided with two working faces arranged at an angle toeach other, said faces being at differentplaces in'ihe length oi. the guide, and means for feeding the goods across said guide.

19. In a sewing machine for blind stitching, the combi-' nation with areclprocating and laterally vibrating needle, 0! a yleldingly mounted back guide provided with two working faces at an angle to each other, said faces being at difierentplaces. in the length of the guide, and n'ieans for feeding the goods across said guide.

29.: In a sewing machine for blind stitching, the combi nation-with reciprocating and laterally vibrating needle, of a back guide provided with two independently yielding working faces arranged at different places in the length of the guide. 7 l

-21. In a sewing machinc for blind stitching, the combi nation witha reciprocating and laterally vibrating needle,

ot a back guide provided with two independently, yielding working faces arranged at an angle to each other, said faces being at ditterent places in the length of the guide. .22. In asewing machine for blind stitching, the combination with a yieldlngly mounted back guide, of means for feeding the goods acrossthe guide, and means'for fiorming two rows of stitches adjacent to the face of said back guide. g

23. In a sewing machine for blind stitching, the combination with a back guide provided with two working faces arranged-at an angle to each other, said faces being at different places in the length of the guide, of means for formand means for feedingfthe goods acrossthe face of said guide.

24. In a sewing machine for blind stitching, the combination with a back guide provided with two working faces, of a reciprocating and laterally vibrating needle, and means for independently adjustingsald working faces.

25. In a sewing machine for blind stitching, the combination with a back guide provided with two independently movableworking faces arranged at auangle toeach 'other, or a reciprocating and laterally vibrating needle tor forming two rows of stitches adjacent'to the face oi. said back guide, and means for independently adjusting the move ment of said faces toward said needle.

26. In a sewing machine for blind stitching, the combination with stitch-forming mechanism, of a back guide aroundwliich i the! enitive "red, a1 ic lampin g dev ce for .5.

holdingthe goods, and meansior reciprocating said back guide to re ume goods.

27. In' a sewing machine firming stitching, t innation with' stltch-torrnlug mechanism, of aback guide around which thegoods are fed, and'means for causing-n greater feed of the goods around one .partof said guide than another.

28 In a sewing machinefor blind stitching, the co'mbiw nation with a stitch-formingmechanism, of a two-part re ciprocating back guide around which goods are fed, and? means for imparting greatermovement to one part of said guide than to the other. a

29. In a sewing machine foriblind stitching, the combination with stitch-forming mechanism, of a back guide, a;- reciprocating feed dog, a presser foot, means-tor holding said prcsser foot in position, and means for throwing said presser footo'ut of operation while said feed dog is feeding' the goods.

30. In a sewing machine for bllnd stitching, th combi= nation with stitch-forming mechanism, of a reciprocating back guide, a feed dog, and a walking foot .codperating with said feed dog. 31. In a sewing machine for blind stitching, the combination with stitch-forming mechanism, of a reciprocating back guide,.a teed dog, and means for simultaneously actuating s'aid back guide and feed dog while the latter is in engagement with the goods. 32. In a sewing machine for blind stitching, the combination with stitch-formingmechanism,of a reciprocating-1 10 z back guide,, a feed dog, means for simultaneously actuab:

lng said 'backguide and feed dog, and a walking foot cooperating with said feed dog.

83. In' a sewing machine for-bllnd stitching, the comblnation wlth stitch-forming mechanism, of a reciprocating vback guide, and a teed dog carried by said back guide.

34. Inasewiug machine for blind stitching, the 'combination with stitch-forming mechanism, ot a reciprocating back guide, a feed dog carried by said back guide, and a ,walking foot codperating with said feed dog.

v35. In a sewing machine for blind stitching; the combination with stltchtorming mechanism, or a reciprocating back guide, a feed-dog, means'for simultaneously actuat- I ing said back guide and feed dog, a walking foot coiip'erating withsaid feed dog, and a presser toot for holding the f work during the forward movement of said back guide.

36. In asewing machine for blind stitching, the combination with stitch-formingmechanism, of'a back-guide, a reciprocating feed dog, a walking foot, cooperating with of motion.

ating said feed dog and walking foot from the; same source 38. Ian sewing machine for blind st itching, thecomble:

nation with stitch-forming mechanism, of a reciprocating back guide, a feed dog, operating mechanism for simultaneously actuating said back guide and feed dog while the latter is 'in engagement with the goods, and adjusting means for regulating the movement of both said back guide and feed dog. ing two rows'ot stitches unequally distant from said faces,

39. In a sewing machine .for bllndstitchingq the combl- 40. In a sewing machine for blind stitching, the combination with a back, guide, of feed mechanism, stitch-form ingmechanism provided witha needlethe thrustg of which is in a direction opposite to the feed of the goods, a mixing, presser toot coliperating with said feed mechanism, and independently movableanxiliary presser foot yieldingly mounted on said main pr'esser foot and opposing the thrust oftheneedle.

41. In a sewing machine for blind stitching, the c'ombii said feed dog beyond said guide, and connections for actu- 1.30 V atlng said feed dogandwalking foot. 5

rear face of said hook needle, the rear face of said hook being arranged to take ,nation with a guide, of stitch-forming mechanism insaid needle.

nation with stitch-forming mechanism, of a back guide, means for feeding the goods around said guide, a main on said main presser foot. 1

i2. In a sewing machine, the combination with a reciprocating needle, of a rotary hook containing a bobbin and to the path of reciprocation of said needle, the cooperating with said needle to take the loop.

43. In a sewing machine for blind stitching, the combination with a back guide. of'a reciprocating needle, and a rotary hook inclined to the path 01' reciprocation of said needle. said book being arranged to take the loop from the side of the needle toward said back guide.

44. in a sewing machine for blind stitching, the combination with a back guide,"of a reciprocating needle. and a rotary hook inclined to the path of the loop from the side of the need e toward the back guide. 45. In a sewing machine for blind stitching, the combicludlng a needle, and means for holding said needle under tension and in alinement while passing said guide.

46. in a sewing machine for blind stitching, the combination with stitch-forming mechanism including a needle arranged with its axisat an angle to the path of reciprocation, of a guide for the goods, and a needle guide for deflecting said needle.

-17. In a sewing machine for blind stitching, the combination with a guide for the goods, of stitch-forming mechanism including a needle having its point between guide for the goods. and a needle guide for deflecting said needle before it ente'rs the material.

w.- In a sewing machine for blindstitching,

needle before it enters the material.

50. In a sewing machine for blind stitching, the combination with stitch-forming mechanism including a needle having its point substantially in line with one of a back guide. needle.

51. in a sewing machine for blind stitching, the combination with'stitch-forming mechanism including a needle guide toward said needle.

- 52. In a sewing machine nation with stitch-forming mechanism, of a stationary movement of said back guide torial, a movably mounted back guide, and means for posi tlvcly limiting the movement of said back guide toward 54. in a sewing machine for blind stitching, nation with stitch-forming mechanism, guidifor deflecting the needle before it enters the materiul. a movably mounted back guide, and adjustable means for positively limiting the movement 0! said back guide toward said needle guide.

05. in a sewing machine for blind stitching. the combination with u ban-"guide, of feeding mechanism, and all goods along the path of travel of the goods at the point the combiof a rigid needle 5d. ln a sewing machine for blind stitching, the combination with feeding mechanism, of a back guide having its face inclined to the path of feed of the goods adjacent thereto, and -an cdgc guide inclined to the path of travel of the goods at the point: of food.

57. In a machine for blind siitching, tin combination with feeding mechanism, of a buck guide formed of two parts diiicrenily inclined to thc pathot iecdof the goods.

goods at the point of feed.

58. In a sewin machine, the combination with a back guide, of feeding mechanism, and a drag foot forming an edge guide for the goods and inclined to the path of travel of the goods at the point of feed.

fill. in a sewing machine for blind stitching, the combination with a back-guide. of feeding mechanism, and an edge guide for directing the travel of the goods along a line inclined to the face of said bnclcguidc.

(iii. In a sewing machine for blind stitching, the combination with feeding mechanism, of a buck guide having its face inclined to the path of feed of the goods adjacent thereto, and an edge guide inclined to the face or said back guide.

61. In a sewing machine for blind stitching, the combination with feeding mechanism. of a back guide formed of two parts differently inclined to the path of feed of the goods. and an edge guide inclined to the face of said back guide. 4

62. In a sewing machine, the combination with a back guide, of feeding mechanism, and a drag foot forming an edge guide for the goods and inclined to the face of said back guide.

63. In a sewing machine for blind stitching, the combination with a needle, of a back guide, a rotary hook mechanism mounted to move toward and away from said back guide, and a drag foot carried by said rotary hook mechanism.

.64. In a sewing machine, the combination with a back guide, of feeding mechanism, arotary hook mechanism mounted to move toward and away from the back guide. mechanism and inclined to the feed.

the goods and path of travel of the goods at the point of p 65. In a sewing machine for blind stitching, the combination with a needle, of a back guide. a rotary hook mechanism mounted to move toward and away from said back guide, a drag foot carried by said rotary hookmechanism,

and mcuns'for varying the pressure of said drag foot.

66., In a sewing machine for blind stitching, the combination with a back guide, of a needle, means for causing said needle to pass said back guide, and a rotary member provided with a deflecting surface for straightening said the time of contact with said needle being inclined in the direction of the length of said needle.

In a sewing machine for blind stitching, the combination with a back guide, of a needle, means for causing said needle to pass said back guide under tension, and a cning said needle.

(i8. In a sewing machine for blind stitching, the combination with :1 back guide, of a needle having its point substantially in line with one of its sides, a rotary hook, and a bridge carried by said hook for supporting the point of tholueedle while the beak of .the hook is passing said needle.

69. in a sewing machine for blind stitchi-n'g, the combination with a back guide, of tween its center line and said guide, a rotary hook, and a bridge carried by said hook forsupporting the point of theneedle while the beak of the hook is passing the needle.

70. In a sewing machine for. blind stitching, the combination with a back guide, of a needle, a rotary hook having a face arranged to support the point of said needle, and a path formed in said supporting face for clearing the needle thread.

71. In a sewing machine for blind stitching, the combination with a needle. 01'

onto said cast-oft surface.

7:3. In a sewing machine for blind stitching, the combiand an edge guide inclined to the path of travel of the eeeeso nation with stitch-f0rming mechanism, of means for presenting the goods to the needle with the edge nd'jncent to the neuile inclined to the path of reciprocation of said in a sewing machine for blind stitchin the'c hination with stitch-forming mechanism, of o. hack gultii; and means fonieeding the goods across the nice of said guide'adjncent to the needle in a path inclined to said face.

I In :1 se 'ng machine for blind stitching, the combination wlth stitch[orming mechanism needle having' multiple pathspf reciprocation, of :1 ouch goide, and means for teeding the goods across the face of said guide adjacent to the needle in the path inclined to said face.

75. in n sewing mi chine, the combination with stitchim'min: mechanism provided with a needle having two paths of reciprocation, of means for presenting the goods in the stitch-forming mechanism with the edge adjacent to the needle inclined to both said paths of reciprocation of the needle.

T6. In n sewing machine for blind stitching, the combination with stitch torming mechanism, of means for presenting the goods to the needle with the edge adjacent to the needle inclined to the path of reciprocation of said. needle, and an edge guide for the goods.

face. and an e ig:-.e'guide inclined to the taco 0; said back guide. v

79. in a sewing machine, the combination-with stitch forming mechanism giroviiied with a needle having two paths of reci stion, of menus 1'01 presenting the goods to the StiifCh-IOZmlDg mechanism with the edge adjacent to the needle'inclined to both said paths of rec procation of the needle, and an edge guide for the goods.

In testimony whereof, 1 have hereunto set my hand and nfiixed my seal, in the presence of the two subscribing witnesses.

.TQHN G. LEWIS. [n 5.]

Witnesses A. C. FOWLER,

W. A. ALEXANDER.-

-I'nr1ning mechanism proude i with a 

